Direct Inward Dialing (Did); Considerations - Avaya PARTNER Installation And Use Manual

Direct Inward Dialing (DID)

Use this feature to have Direct Inward Dialing (DID) numbers on a T1 line routed automatically to
the PARTNER extensions, hunt groups, or calling groups you specify. When a Direct Inward
Dialing (DID) call arrives, the PARTNER system "collects" the digits from the T1 service provider
(that is, the number that was dialed) and matches the number to a DID Mapping Table you
created. If the incoming number matches an entry in the DID Mapping table, the call rings at the
matching extension or hunt group.
To use this feature, you must:
purchase a "block" of Direct Inward Dialing (DID) telephone numbers from your T1 service
provider
use PARTNER ACS R7.0 PC Administration to map extensions, hunt groups, or calling groups
to the Direct Inward Dialing (DID) telephone numbers
See the PARTNER ACS R7.0 PC Administration online help for more information.
Outgoing calls can be made on T1 lines administered for Direct Inward Dialing (DID).

Considerations

A T1 module is required for Direct Inward Dialing (DID).
You must use the PARTNER ACS R7.0 PC Administration software to program Direct Inward
Dialing (DID) on T1 lines.
You can have a call on a T1 line with Direct Inward Dialing (DID) ring at an extension that
cannot access a T1 line from a line or pool button. If the line or pool button is not programmed
at an extension, or the line or pool button is busy, the call rings at one of the extension's
Intercom buttons.
Outgoing calls can be made on T1 lines administered for Direct Inward Dialing (DID).
Automatic System Answer features are disabled on T1 lines with Direct Inward Dialing
(DID).
Direct Extension Dialing features are disabled on T1 lines with Direct Inward Dialing (DID).
Caller ID information is unavailable on T1 lines. The message "Direct In Dial" or "DID" is
displayed for incoming calls on T1 lines with Direct Inward Dialing (DID).
You should not assign T1 lines with Direct Inward Dialing (DID) to Hunt Groups. If a Hunt
Group contains T1 lines with Direct Inward Dialing (DID), callers will receive busy signal
when all extensions in the Hunt Group are busy (for example, off-hook), have Do Not Disturb
activated, or are in programming mode.
Group Call Distribution (#206) is disabled on T1 lines with Direct Inward Dialing (DID). DID
calls are routed to hunt groups and calling groups via the DID Mapping Table. (See the
PARTNER ACS R7.0 PC Administration online help for more information.)
Programming System Options
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Direct Inward Dialing (DID)

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